Mass Effect 3 Wiki Guide

Element Zero

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Element Zero[edit]

Element Zero or "eezo" for short, is an element found frequently in the Mass Effect series. It is used to upgrade equipment and is the base ingredient for Mass Effect relays. It is thought that the Reapers themselves run on eezo.


Eezo is generated when solid matter, such as a planet, is affected by the energy of a star going supernova. The material is common in the asteroid debris that orbits neutron stars and pulsars. These are dangerous places to mine, requiring extensive use of robotics, telepresence, and shielding to survive the incredible radiation from the dead star. Only a few major corporations can afford the set-up costs required to work these primary sources.

Humanity discovered refined element zero at the Prothean research station on Mars, allowing them to create mass effect fields and develop FTL travel.

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Mass Effect 3

DevelopersBioWare, Straight Right
PublishersElectronic Arts
Release DateMarch 6, 2012
PlatformsXbox 360, PC, PlayStation 3, Wii U